Update version to 1.3.21
diff --git a/doxygen/input/doc_mainpage.h b/doxygen/input/doc_mainpage.h
index e49a383..3452e24 100644
--- a/doxygen/input/doc_mainpage.h
+++ b/doxygen/input/doc_mainpage.h
@@ -4,7 +4,7 @@
*/
/**
- * @mainpage mbed TLS v1.3.20 source code documentation
+ * @mainpage mbed TLS v1.3.21 source code documentation
*
* This documentation describes the internal structure of mbed TLS. It was
* automatically generated from specially formatted comment blocks in
diff --git a/doxygen/mbedtls.doxyfile b/doxygen/mbedtls.doxyfile
index aabc413..9b00327 100644
--- a/doxygen/mbedtls.doxyfile
+++ b/doxygen/mbedtls.doxyfile
@@ -28,7 +28,7 @@
# identify the project. Note that if you do not use Doxywizard you need
# to put quotes around the project name if it contains spaces.
-PROJECT_NAME = "mbed TLS v1.3.20"
+PROJECT_NAME = "mbed TLS v1.3.21"
# The PROJECT_NUMBER tag can be used to enter a project or revision number.
# This could be handy for archiving the generated documentation or